Putting a TPI top end onto a \'72 block Has anyone used their old block and just put all the TPI goodies on top? How about TBI? Can you mix and match TPI components ( I know a guy that has a 305 TPI out of an IROC with a cracked block, could I use these parts or are the 305 parts crappy?) I have a spare '72 350 out of a GMC 3/4 ton and I want to rebuild it. I am still trying to make up my mind whether or not to go fuel injection. Does any one have any advice? Thanks again guys, Rod In Canada we use K5s instead of dog sleds now!